Eaton Detroit Truetrac Differential 28 Spline 1.20in Axle Shaft Diameter 2.73 & Up Ratio Rear 8.5in

The Detroit Truetrac was the first helical gear differential ever introduced into the automotive aftermarket as an Eaton brand. It remains the leading helical gear-type limited slip differential in the industry. Detroit Truetrac’s proven helical gear design eliminates the need for wearable parts, resulting in maintenance free traction recognized not only for its toughness, but its smooth and quiet operation as well.Proven design, low cost and effective performance all make the Detroit Truetrac limited slip differential the ideal choice for a wide variety of vehicle applications. No maintenance – Just Traction.This Part Fits: Year Make Model Submodel 1973-1975 Buick Apollo Base 1975 Buick Apollo SR 1971-1973 Buick Centurion Base 1973-1977,1980-1981 Buick Century Base 1975-1979,1982-1989 Buick Century Custom 1980-1981,1984 Buick Century Estate 1985-1989 Buick Century Estate Wagon 1976 Buick Century Indianapolis 500 Pace Car 1978-1989 Buick Century Limited 1973-1975 Buick Century Luxus 1984 Buick Century Olympia Limited 1975-1979 Buick Century Special 1978-1981 Buick Century Sport 1983-1986 Buick Century T-Type 1971-1974,1976-1979 Buick Electra 225 1971-1974 Buick Electra 225 Custom 1974 Buick Electra 225 Limited 1973 Buick Electra Base 1975 Buick Electra Custom 1980-1989 Buick Electra Estate Wagon 1975-1989 Buick Electra Limited 1978-1989 Buick Electra Park Avenue 1989 Buick Electra Park Avenue Ultra 1985-1989 Buick Electra T-Type 1971-1983 Buick Estate Wagon Base 1971-1972 Buick GS Base 1971-1972 Buick GS 455 Base 1971-1981,1987-1989 Buick LeSabre Base 1985 Buick LeSabre Collector’s Edition 1971-1973,1975-1978,1982-1989 Buick LeSabre Custom 1977 Buick LeSabre Custom Sport 1985-1989 Buick LeSabre Estate Wagon 1979-1989 Buick LeSabre Limited 1982 Buick LeSabre Limited Edition F/E 1974 Buick LeSabre Luxus 1978-1981 Buick LeSabre Sport 1987 Buick LeSabre T-Type 1976-1979 Buick Opel Base 1977-1979 Buick Opel Deluxe 1978-1979 Buick Opel Sport 1988-1989 Buick Reatta Base 1973-1987 Buick Regal Base 1988-1989 Buick Regal Custom 1982-1983 Buick Regal Estate Wagon 1987 Buick Regal GNX 1989 Buick Regal Gran Sport 1984-1987 Buick Regal Grand National 1978-1989 Buick Regal Limited 1982 Buick Regal Limited Turbo 1978-1982 Buick Regal Sport 1976-1977 Buick Regal SR 1983-1986 Buick Regal T-Type 1971-1985 Buick Riviera Base 1971 Buick Riviera Gran Sport 1975 Buick Riviera GS 1982 Buick Riviera Limited Edition 1983-1989 Buick Riviera Luxury 1978 Buick Riviera LXXV Anniversary Edition 1979-1980 Buick Riviera S 1976 Buick Riviera Sport 1976 Buick Riviera SR 1981-1989 Buick Riviera T-Type 1983 Buick Riviera XX Anniversary Edition 1975-1980 Buick Skyhawk Base 1982-1989 Buick Skyhawk Custom 1980 Buick Skyhawk Designers’ Accent Edition 1982-1987 Buick Skyhawk Limited 1979-1980 Buick Skyhawk Road Hawk 1975-1980 Buick Skyhawk S 1988-1989 Buick Skyhawk SE 1986-1987 Buick Skyhawk Sport 1983-1987 Buick Skyhawk T-Type 1970,1972 Buick Skylark 350 1970-1972,1975-1982 Buick Skylark Base 1970-1972,1978-1979,1983-1989 Buick Skylark Custom 1980-1989 Buick Skylark Limited 1976-1979 Buick Skylark S 1978,1980-1983 Buick Skylark Sport 1975-1977 Buick Skylark SR 1983-1984 Buick Skylark T-Type 1986-1987 Buick Somerset Custom 1986-1987 Buick Somerset Limited 1986 Buick Somerset T-Type 1985 Buick Somerset Regal Base 1985 Buick Somerset Regal Limited 1971-1972 Buick Sportwagon Base 1976-1979 Cadillac Seville Base 1978-1979 Cadillac Seville Elegante 1977-1978 Cadillac Seville Opera 1970-1975 Chevrolet Bel Air Base 1987-1989 Chevrolet Beretta Base 1989 Chevrolet Beretta GT 1964-1972 Chevrolet Biscayne Base 1970-1972 Chevrolet Brookwood Base 1978-1980 Chevrolet C10 Big Ten 1977-1981 Chevrolet C10 Cheyenne 1981-1986 Chevrolet C10 Custom 1977-1980 Chevrolet C10 Custom Deluxe 1981 Chevrolet C10 Deluxe 1977-1986 Chevrolet C10 Scottsdale 1977-1986 Chevrolet C10 Silverado 1981-1986 Chevrolet C10 Suburban Custom 1977-1980 Chevrolet C10 Suburban Custom Deluxe 1981 Chevrolet C10 Suburban Deluxe 1977-1980,1982,1984-1986 Chevrolet C10 Suburban Scottsdale 1977-1980,1982-1986 Chevrolet C10 Suburban Silverado 1970-1980,1988 Chevrolet Camaro Base 1979-1986 Chevrolet Camaro Berlinetta 1985-1989 Chevrolet Camaro Iroc-Z 1973-1978,1987 Chevrolet Camaro LT 1976-1978 Chevrolet Camaro LT Rally Sport 1976-1980 Chevrolet Camaro Rally Sport 1970-1973,1975,1989 Chevrolet Camaro RS 1981-1987 Chevrolet Camaro Sport 1970-1972 Chevrolet Camaro SS 1970-1974,1977-1987 Chevrolet Camaro Z28 1982 Chevrolet Camaro Z28 Indianapolis 500 Pace Car 1971-1972,1986-1989 Chevrolet Caprice Base 1973-1989 Chevrolet Caprice Classic 1986-1989 Chevrolet Caprice Classic Brougham 1976-1978,1981-1982 Chevrolet Caprice Classic Estate 1976-1981 Chevrolet Caprice Classic Landau 1987-1989 Chevrolet Caprice Classic LS Brougham 1975-1976,1979-1980 Chevrolet Caprice Classic Sport 1973-1974 Chevrolet Caprice Estate 1975 Chevrolet Caprice Estate Wagon 1982-1989 Chevrolet Cavalier Base 1982 Chevrolet Cavalier Cadet 1982-1986 Chevrolet Cavalier CL 1983-1987 Chevrolet Cavalier CS 1984 Chevrolet Cavalier Olympic 1986-1989 Chevrolet Cavalier RS 1984-1985 Chevrolet Cavalier Type-10 1988-1989 Chevrolet Cavalier VL 1986-1989 Chevrolet Cavalier Z24 1982-1989 Chevrolet Celebrity Base 1982-1983,1989 Chevrolet Celebrity CL 1985 Chevrolet Celebrity Classic 1982 Chevrolet Celebrity CS 1985-1987 Chevrolet Celebrity Estate 1984-1989 Chevrolet Celebrity Eurosport 1971-1972 Chevrolet Chevelle Base 1971-1972 Chevrolet Chevelle Concours 1971-1972 Chevrolet Chevelle Concours Estate 1973 Chevrolet Chevelle Deluxe 1971-1972 Chevrolet Chevelle Greenbrier 1971-1972 Chevrolet Chevelle Malibu 1971-1972 Chevrolet Chevelle Nomad 1971-1972 Chevrolet Chevelle SS 1976-1985 Chevrolet Chevette Base 1984-1987 Chevrolet Chevette CS 1982 Chevrolet Chevette Diesel 1977 Chevrolet Chevette Rally Sport 1976 Chevrolet Chevette Rallye 1983 Chevrolet Chevette S 1977 Chevrolet Chevette Sandpiper 1976-1983 Chevrolet Chevette Scooter 1976 Chevrolet Chevette Sport 1976 Chevrolet Chevette Woody 1980-1983 Chevrolet Citation Base 1980 Chevrolet Citation Club 1980 Chevrolet Citation Custom 1980-1983 Chevrolet Citation X-11 1984-1985 Chevrolet Citation II Base 1984-1985 Chevrolet Citation II X-11 1987-1989 Chevrolet Corsica Base 1987-1988 Chevrolet Corsica LT 1989 Chevrolet Corsica LTZ 1988 Chevrolet Corvette 35th Anniversary Edition 1971-1974,1977-1982,1984-1989 Chevrolet Corvette Base 1982 Chevrolet Corvette Collector’s Edition 1978,1986 Chevrolet Corvette Indianapolis 500 Pace Car 1978 Chevrolet Corvette Silver Anniversary Edition 1975-1976 Chevrolet Corvette Stingray 1973-1977 Chevrolet El Camino Base 1975-1977 Chevrolet El Camino Classic 1977 Chevrolet El Camino Conquista 1973-1974 Chevrolet El Camino Custom 1973-1977 Chevrolet El Camino SS 1971-1985 Chevrolet Impala Base 1975-1977 Chevrolet Impala Custom 1976 Chevrolet Impala Custom Landau 1981-1982 Chevrolet Impala Estate 1977-1979 Chevrolet Impala Landau 1976 Chevrolet Impala S 1975-1976,1979-1980 Chevrolet Impala Sport 1977-1981 Chevrolet K10 Cheyenne 1981-1986 Chevrolet K10 Custom 1977-1980 Chevrolet K10 Custom Deluxe 1981 Chevrolet K10 Deluxe 1977-1986 Chevrolet K10 Scottsdale 1977-1986 Chevrolet K10 Silverado 1981-1986 Chevrolet K10 Suburban Custom 1977-1980 Chevrolet K10 Suburban Custom Deluxe 1981 Chevrolet K10 Suburban Deluxe 1977-1980,1982,1984-1986 Chevrolet K10 Suburban Scottsdale 1977,1979-1980,1982-1983,1985-1986 Chevrolet K10 Suburban Silverado 1977-1981 Chevrolet K20 Cheyenne 1981-1986 Chevrolet K20 Custom 1977-1980 Chevrolet K20 Custom Deluxe